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Exterior Components› Body Panels and Components

BMW Genuine Parts

M Performance Rear Diffuser

$1,940.00 $1,640.00 Save $300.00

SKU: 51125A36893

In Stock
In Stock
Ships by Sep 9
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The BMW Genuine Parts 51125A36893 is an M Performance carbon fiber rear diffuser designed for the G42 2-Series. It enhances the vehicle's rear-end appearance with a more aggressive and aerodynamically refined look.
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The BMW Genuine Parts M Performance Carbon Fiber Rear Diffuser is designed to give your G42 2-Series a more aggressive and aerodynamically refined appearance. Constructed from genuine carbon fiber with a natural weave finish, this rear diffuser is both lightweight and durable. The M Performance diffuser provides a clean, factory-integrated look while adding a sporty aesthetic. This rear diffuser is compatible exclusively with the M240i and M-Sport rear bumper configurations for the BMW G42 2-Series. It does not fit standard bumper models. Please ensure your vehicle is equipped with the M Aerodynamics Package for proper fitment.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandBMW Genuine Parts
Part Number51125A36893
CategoryExterior Components

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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